Jesse b



(No. Model.) v

' J.. B. PUGrlEI.`

r@SPRING MoToR. No. 295,505.' Patented Mar. 1.8, 1884'.

. UNITED STATES PATENT OFFICE. v

`Jassen. PUGH, on INDIANAPOLIS, INDIANA, AssIGNoe. or ONE-HALF To E. A. NICHOLS AND A. S. VIEIRIA, BOTH OF SAME PLAGE.

SPECIFICATION forming part of Letters Patent No. 295,505,u dated. March 18, 1884. Application led October 22. 1883. (No model.)

means for governing themotion of the same and regulating the speed thereof, as more fully set forth in the following specification.

Referring to the accompanying drawings filed herewith and made a part of this specification, and in which similar letters of reference designate similar parts of my invention, Figure l is a front view of my device. Fig. 2 is a top'view, and Fig. 3 is an enlarged sectional view, of Iny appliance for governing the motion and regulating the speed of `my motor.

In Fig. l, F is a frame to incloseand support the mechanism; which consistsV of a coil- Aspring, Sp, to actuate the shaft Sa, upon which is mounted the cog-wheel Cw, provided with ratchet R and ratchet-pawl Rp, said cog-wheel Cw'l engaging with pinionPimounted on shaft a2, which has mounted thereon a larger cogwheel, Cw, which engages with and actuates pini-on Pt', attached tothe upright shaft of the governor Go, to the lower end of which shaft is mounted the bevel-gearing Bg. which actuates shafta3 and imparts power to driving-pid ley Dp. (See Fig. 2.)

In Fig. 2 the dotted lines indicate those parts of my device inclosed in the frame F.

The ratchet-wheel or escapement Ew, mounted on the shaft a2, isprovided for regulatingthe motion and governing the speed of my device by means of the anchor or pallet P, to which is rmly attached shaft a, provided at the lower end with a rubber `cog-Wheel, Rg, working in the segmental rack Sr, said shaft a pivoted atp to an adjustable block, Gb, as seen in Fig. 3.

Sp is a spring-plate, firmly fastened at one end to the frame F and extending to the segmental ratchet-bar Sr, said plate Sp having an annular slot, As. (See Figs. l and 3.)

Gn is a governor, provided with connectingrod Cnthe low er end of which is bolted to spring-plate Sp. (See Figs. 1 and 2.)

Bw is a rubber cog-wheel,pivoted to a spring, Sp', and regulated by means of a thumb-screw, 55 Ts. (See Fig. 2.)

Sc is a set-screw, provided for regulating the guide-block'Gb'which works in the collar C; and Dp is a driving-pulley. I

The method of operating my device is as fol- 6o lows: Winding up thespring Sp onshaft Sa `with an ordinary crank or key, Iturnthe setl screw as, releasing the pressure of the spring plate Sp on the shaft a, and the machinery is set in motion by the spring-power, imparting motion to the drivingpulley Dp. (See Fig. 2.) To obtain the desired rate of speed, I turn the set-screw Sc, which moves the guide-block Gb, provided with pivot p, on which the shaft a turns to or from the escapement Ew, thus 7o lengthening the distance traversed by the rubber cog-wheel Rg, which, being loosely mounted on the shaft c and working in the rack-bar Sr, gives the machine a steady motion on aci count of its elasticity. The motion of the machine being thus regulated, the governor Go, preserves the regularity of the speed, as in any ordinary engine. To further control the speed,

if a very slow speed should be desired, Iv turn the thumb-screw Ts. which presses the spring 8o on which is mounted the rubber cog-wheel Bw, the cogs of which engage with the large cog-` Wheel Gwz, producing anyr desired speed.

Although my invention is designed for running sewing-machines and dentist-lathes, I do not lconfine myself to these uses, but propose also" to apply the same power and means for regulating the same to propelling street-cars, to accomplish which I have but to increase the i number of springs as occasion may demand. 9o

Having thus lfully described my invention, its purposes and uses, what I claim as new, and desire to secure by Letters Patent, -is- 1. In a device for regulating the speed of spring-motors, the escapement Ew, working on pallet l?, mounted on shaft a, working in annular slot As of spring-plate Sp, said shaft being provided with rubber cog-wheel Rg to work in segmental rack-bar Sr, substantially in the manner and for the purpose setforth.

spring motors, the rubber loog wheel Bw, mounted on spring Sp', supplied with thumbscrew Ts, in combination with oog-Wheel C102, substantially in the manner and for the purpose set forth.

In Witness whereof I have hereunto set my hand and seal this 15th day of October, A. I). 1883. f

JESSE B. PUGH. [L 5.] In presence of H. J. EVERETT, R. M. CosBY. 

